Shoe cleat



Patented Apr. 7, 1931 UNITE. STATES IRA IRLjTUBBs, onsurnnron,*w1sco1vsiiv sHoE CLEAT Application filed November 1 2 1927. 7Serial No. 232,824.

This invention relates to shoe cleats and has particular reference to ananti-slip cleat particularly adapted for use upon football players shoesor the like.

. The principal object of the invention is to produce a more practical,durable, and efficient cleat than heretofore known.

Another object is to provide such a cleat or shoe calk which may bereadily removed 10 or interchanged and yet is securely held in positionagainst accidental dislodgment.

' A further object is to provide such a shoe cleat wholly externally ofthe sole of the shoe, and one presenting the least amount ofobjectionable or dangerous protrusion from the shoe.

Still other objects and advantages of the invention will appear in thefurther description thereof.

ing, forming part of this application, and wherein like referencecharacters indicate like parts:

Fi re 1 is a central vertical section through one of the improved,cleats as 'applied to the sole of a shoe in inverted position:

Figure 2 is a similar View of a modified form of cleat.

Figure 3 is a like view of a still further modified form of cleat, and VFigure 4 is a top plan view of Figure 1. The cleat or calk is circularin form and preferably of frusto-conical or frustum shape, beingcomposed of the holding member or base portion 1, made of suitablematerial such as brass, aluminum, or'the like, the preferred form havinga. central bore 40 which is internally screw threaded as at 2,

- and provided with the annular flange 3, through which suitable holesare formed for attachment to the bottom of the shoe sole, either byscrews or nails as preferred, the

latter being indicated at 4, and the sole of the shoe at 5.

Within the bore of the base 1 is screw threadedly mounted the tip of thecalk or ly impinge; the face of the sole 5 when the tip Referring now tothe accompanying drawthe'base, and made of any'suitable material such asrubber, fiber, or bakelite.

In; the extreme end of the portion 7 of the tip, which extends withinthe base 1 and abuts the face of the shoe s'ole,'I prefer to 5-3 form aplurality of shallow holes or recesses, indicated at 8, so that when thetip is screwed into position and the portion 7, being made sufficientlylong for such purpose, will tightls'screwed tightly homewith theshoulder thereof engaging the outer extremity of the base 1. Thisconstruction acts as locking means for the tip, as the leather. of theshoe sole, being somewhat yieldable, will bulge slightly within thedepressions .8 and tend to hold the tip snugly in position.-

In Figure 2 the base portionis illustrated at 9 and has an upwardlyprotruding central portion which is externally screw-threaded, and thetip 10 is so constructed as to surround same, the. lowerportion'covering the entire face of the flange of the base 9, in whichevent the upper face of the externally screw threaded portion of thebase is provided with V depressions 11 similar to those previouslydescribed and numbered 8; they functioning in a like manner to hold thetip firmly in position.

In Figure 3 I have shown a modified form r so of tip 12 for mountingupon the base 13 which is identical in shape with the base 1, shown inFigure 1, andwhich form of tip may be preferred for a larger and longertip for use in excessively muddy and softconditions. 7

It will of course be understood that the tip, or entire cleat, asillustratedin Figure 1, may be enlarged, in lieu of the modificationshown in Figure 3, for use on muddy or heavy ground; and that theportion 7 of the'tip may not extend entirely to the sole of the shoe asillustrated. Further modifications may also be resorted to withoutdeparting from the spirit of the invention, as defined in the appendedclaims. 1

Having thus described my invention, what I claim and desire to secure byLetters Pat-- ent, is

1. A removable shoe'calk of the class described, comprising a base plateadapted to be attached to the sole of the shoe and having an outwardlyextending frustro-conical extension having a screw threaded openingtherein, said opening extending through the base plate, and afrustro-conical ca-lk having a reduced screw threaded extension,threaded into the opening in the extension and the base plate having itsinner end engaging the sole of the shoe, the extension of the base plateand calk forming a truncated-cone.

2. A removable calk of the class described, comprising a base plateadapted to be secured to the sole of the shoe and having an outwardlyextending frustro-conical extension, having a screw threaded openingextending therethrough and through the base plate, and afrustro-conically shaped calk having a reduced screw threaded extensioncarried by its lower end and adapted to extend through the opening inthe exten sion and base plate, and having its lower end provided withrecesses or serrations adapted to engage the sole of the shoe and theouter end of the extension engaging the calk around the threadedextension thereof, said extension and calk forming a truncatedcone.

3. A removable calk of the class described, comprising a base plateadapted to be secured to the sole of the shoe' and having a taperingextension provided with a screw threaded opening, and a truncated-coneshaped calk having an annular recess to receive the extension of thebase plate, and a screw threaded extension adapted to be threaded intothe threaded opening in the extension of the base plate.

In testimony whereof I afiix my signature.

IRA IRL TUBES.

